Comparison Tables of State Nutrient Trading Programs in the Chesapeake Bay Watershed

Washington, DC 20002 www.wri.org Over the last ten years, four Chesapeake Bay states—Maryland, Pennsylvania, Virginia, and West Virginia—introduced nutrient trading programs to provide wastewater treatment plants with flexible options for meeting and maintaining permitted nutrient load limits. At least one other bay state, Delaware, also convened a work group to discuss developing such a program. Through these programs, wastewater treatment plants may purchase credits or offsets generated by other wastewater treatment plants or farms that reduce the nutrients they release to impaired water bodies. States are also exploring options for construction and urban stormwater programs to buy and sell credits and offsets.